Answer:
B
Step-by-step explanation:
Using the exact values
cos150° = - cos30° = -
sin150° = sin30° =
Given
z = 4(cos150° + isin150° ) , substitute values
= 4(- + i )
= - 2 + 2i , that is
(- 2, 2 ) → B
288 because you just subtract 529 from 817
1. 18:3
2. 6:1
Correct me is I'm wrong but I believe its a independent variable.
I don't see any ratios to compare.